@article{10_14708_ma_v41i1_409,
     author = {Jacek B. Krawczyk and Alastair S. Pharo},
     title = {Viability theory: an applied mathematics tool for achieving dynamic systems' sustainability},
     journal = {Mathematica Applicanda},
     pages = { 97--126},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {2013},
     doi = {10.14708/ma.v41i1.409},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v41i1.409/}
}